Y \ X
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
2260
2259
2258
2257
2256
2255
2254
2253
2252
2251
2250
2249
2248
2247
2246
2245
2244
2243
2242
2241
2240